diff --git a/README.md b/README.md
index 05ca259..b6e8b36 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ A TX-only [TNC](https://en.wikipedia.org/wiki/Terminal_node_controller) (Termina
 
 ![Signal Flow](https://github.com/eleccoder/raspi-pico-aprs-tnc/blob/main/doc/img/signal_flow.png)
 
-Image: Block diagram showing the signal flow
+Block diagram showing the signal flow
 
 An analog line-out audio signal will be generated by a band-pass filter connected to GPIO-pin 'GP0' which provides the binary PWM signal. You can probe it by a scope, listen to it by using an audio amp, or connect it to any RF transceiver to send it on the air (ham radio license required).
 
@@ -13,12 +13,6 @@ An analog line-out audio signal will be generated by a band-pass filter connecte
 
 Image: Line-out signal (see [below](#Hardware)) probed by a DSO. We clearly see the 1200 Hz and 2200 Hz tones of the 1200 Bd 2-AFSK.
 
-Basically, the data/signal flow is as follows:
-
-```
-APRS (text msg + geo-coordinates + meta-data) -> AX.25 -> PCM -> PWM -> Band-Pass filtering -> AFSK audio signal
-```
-
 Both a static library `libaprs_pico.a` and an example application will be generated by the build.